The puzzle shelf 4 boxes on the shelf
Puzzle boxes,
for one sitting.
Stand-alone puzzle boxes — no series to follow, no characters to remember, just a deck of cards, a tricky lock and an evening to crack it. Solo or small groups. Posted worldwide.
Currently on the shelf
Pick a puzzle
Each box is a single sitting — pull out the cards, divide them across the table, work in parallel, and meet in the middle with the answer. Experienced puzzlers tend to crack one in 60–90 minutes; newer puzzlers may want a long evening.
-
Puzzle box Modern-day espionage thriller
Mission Rogue Protocol
A skyscraper, a hostage situation, a device counting down. Pick the locks one puzzle at a time.
£12 See it -
Puzzle box 1940s wartime Britain
Homefront Heroes
Crack the entrance puzzles, learn the password, and decide which side of the wartime black market you're on.
£12 See it -
Puzzle box Baskerville Hall · early 20th century
Sherlock Holmes & the Return to Baskerville Hall
Holmes is back at Baskerville Hall. The house is full of clues, ciphers and statements that don't quite line up.
£12 See it -
Puzzle box Aboard the S.S Kipper
Space: System Error
Captain Plannet has gone missing aboard the S.S Kipper. Decode the alien alphabet, unlock the C.L.E.D., find out where he went.
£12 See it
How a puzzle box works
A single sitting, a single answer.
Every box contains a deck of stand-alone puzzle cards. Each one can be solved on its own — pass them around, divide and conquer — but their answers feed into one final solution. Sealed solutions stay tucked away until you're ready to check your work. No companion website, no app, just paper and pencil.
Want the full-length version? The unsolved case file games are the same idea stretched over a whole investigation — a box of real evidence, and a murder nobody ever proved.